Some reactions of unsaturated sulphur–nitrogen heterocycles with nucleophilic substrates
Abstract
The reactivity of unsaturated sulphur–nitrogen heterocycles towards a variety of nucleophilic organic substrates has been studied. Tetrasulphur tetranitride (S4N4) is a relatively poor electrophile, but thiotrithiazyl chloride (S4N3Cl) and especially trithiazyl trichloride (S3N3Cl3) react readily with electron-rich molecules. However, the diversity of mechanistic pathways followed by these reagents imposes limitations on their synthetic utility.